Pressure-binder for loose sheets.



J. w. MEAKER, JR.- PRESSURE BINDER FOR LOOSE SHEETS.

924,170. Patented June 8, 1909.

UhIifTED STATES PATENT @FFTQE.

JOHN W. MEAKER, JR, OF CHICAGO, ILLINOIS.

PRESSUBE-BINDEB non Loosn snnn'rs.

Application filed. December 30, 1907.

To all whom it may concern:

Be it known that I, Jo N W. MEAKER, Jr., a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im rovements in Pressure- Binders for Loose heets; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates more particularly to that class of loose leaf binders set forth in my 00- ending application for patent for loose eaf binder executed of even date herewith and in which a clamping plate is firmly engaged upon impaling posts by downward. pressure and is detached therefrom by movement at an angle with said posts.

The object of this invention is to provide a binder of the class described in which the leaves to be held in place are firmly engaged in position between parallel binding and clamping plates.

It is an important object of the invention to provide a construction by means of which a maximum portion of each leaf or sheet engaged in the binder may be exposed for use and also to afford a construction in which a leaf or leaves may be removed or inserted in the binder without necessitating the removal or displacement of any other leaf or leaves.

It is also an object of the invention to provide a construction by means of which leaves or pages may be secured which are not aper tured or slotted along the binding margin as has heretofore been deemed necessary.

It is also an object of the invention to afford a construction in which though impaling posts are used, the sheets are retained in place by pressure from the front edge of the clamping plate more than by means of the impaling posts engaging in apertures or slots in the sheets.

It is finally an object of the invention to afford an exceedingly strong, simple and durable construction adapted for general use for any purpose for which loose leaf binders are adaptable and in which a clamping plate.

is maintained in its clamping relation in part by pressure exerted on the impaling posts below the engaging edge of the clamping plate.

The invention consists in the matters here- I Specification of LettersPatent.

Patented June 8, 1909.

Serial No. 40 8,93.

inafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a perspective view of a device embodying my invention with the cover partly broken away. Fig. 2 is a transverse section thereof with one fold of the cover extended. Fig, 3 is a fragmentary top plan view thereof with the cover turned back and broken away. Fig. 4 is an enlarged fragmentary detail section illustrating the cooperation of the clamping plates and impaling posts in rigidly binding the sheets in place.

In said drawings: A, indicates the lower cover of the binder in which is secured at the rear margin a binding plate A, which may be ofsheet steel or other suitable material. Rigidly engaged thereon either integrally or otherwise are the impaling posts B, which in the present instance are shown as two in number, though, of course, any desired number may be employed. Said impaling posts, as shown, are notched or serrated to afford downwardly directed teeth I) on one or both sides thereof. Said impaling posts are of a length suitable to engage the number of sheets desired to be contained within the binder and may conveniently be sheared and struck up from the binding plate in which event said posts may be relatively thin longie tudinally of the binding plate and the greater dimension thereof directed transversely of the binding plate, as shown in the present construction, though, said impaling posts may be of any desired form and engage in any suitable manner upon the binding plate. As shown, though not necessarily, the leaves are provided with shallow notches at the inner margin ada ,ted to register with and receive the impa ing posts therein. The clamping plate C in this instance comprises an angle bar having a relatively narrow web and flange and which may be turned or formed from comparatively light sheet metal. As shown, apertures are provided through the web closely adjacent the flange and at the forward side of the aperturethe web is struck up to'form a more or less resilient tongue 0, adapted to engage on the forward side of the impaling posts. Conveniently, the flange opposite said tongue is sheared down for a part of the width of the flange and a portion of the metal from the web integral with said tongue 0 is struck up to afwhich projects inwardly to engage in the notches at the rear side of the impaling posts. The aperture in the clamping plate is extended, as shown in Fig. 3 to afford a wider portion slightly beyond the tongues c-c, so that when the clamping plate is pushed longitudinally on the leaves, the impaling posts are disengaged thereby. Of course, if preferred, instead of forming the leaf spring 0 integrally with the flange of the clamping plate, a separate leaf spring 0 may be employed. For convenience of illustration both these constructions are shown in Fig. 1.

The 0 eration is as follows: Having arranged t e leaves in the desired relation and with the rear margins either bearing against the impaling posts or if notched, inserted thereon with the impaling posts in the notches, the clamping plate is adjusted on top of the impaling posts with the ends of said impaling posts projecting into the space between the tongue 0, and spring 0 or 0 Downward pressure forces the front edge of said clamping plate into binding relation with said leaves, such pressure, of course, also springing the lower edge of the flange into firm engagement with the rear side of the impaling posts, and owing to the leverage afforded by the impaling osts engaging against the tongue 0, above t 1e plane of contact of the front edge of the clamping plate, said plate is canted or tilted forwardly ad apting the front edge of the plate to compress the sheets to a greater extent than would otherwise be possible. The spring a or 0 engaging each beneath a tooth on the impaling posts firmly grip the impaling posts between the tongue 0 and said springs thus preventing said plates from lifting and binds the leaves in place with any degree of pressure capable of being exerted by the operator.

Preferably, the forward edge of the clamping plate is either turned downwardly to afford a clamping edge for positive engagement with the aper or the angle of the flange with saic clamping edge is made slightly less than a right angle, as shown in Fig. 4, thereby exerting the greatest clamping pressure somewhat forwardly of the impaling posts and by concentrating the pressure along the line of the edge of said plate affording a somewhat better binding effect than might otherwise be secured. When it is desired to release the leaves it is only necessary to slide the clamping plate longitudinally the back of the binder until the impaling prongs or posts lie in the transverse slots which communicate with and form a part of the apertures beyond the tongue 0 and spring 0. The clamping plate can now be freely lifted, if desired.

Of course, if preferred, a cover may be attached to the clamping plate C, though in the construction shown the binding plate only is rigidly attached to the cover and extending rearwardly therefron'i is a back section a integrally connected with. which isthe upper cover A, and which may be thus folded around the back and down over the clamping plate and the otherwise exposed. leaves.

Of course, inasmuch as pressure is exerted on the rear side of the impaling posts tending to incline or tilt the front edge of the clamping plate downwardly, a pressure effect is secured for the clamping plate not heretofore attained in any construction for a similar )urpose. It is not necessary that said back 'ange on the clamping plate be of any considerable width to secure this result and in any event a narrow clamping plate when so braced and reinforced is capable of exerting much greater pressure in holding the leaves in lace than has heretofore been possible wit 1 devices of a related nature.

I do not purpose limiting this applieatnm for patent otherwise than necessitated by the prior art, as I am aware that details of construction may be varied without departing from the principles of this invention.

I claim as my invention:

1. The combination with. a binding plate of impaling posts rigidly secured thereon. a

clamping plate apertured to receive the inipaling posts, gripping means thereon to rigidly engage the impaling posts when in binding relation and an extension on said clamp ing plate adapted to bear on the rear side the impaling posts below the clam )ing plate.

2. The combination with a binding plate of impaling posts rigidly secured thereon, a clamping plate apertured to receive the im paling posts, resilient gripping means thereon to rigidly engage the impaling posts when in binding relation and an extension on said clamping plate adapted to bear on the rear side of the impaling posts below the clamping plate.

3. The combination with a binding plate of impaling posts rigidly secured thereon, a clamping plate having slotted apertures therein to receive the impaling 'iosts, gripping means thereon to rigidly engage the ini- Jalin aosts when in bindin relation and to be released by longitudinal movement of the clamping plate, and an extension on said clamping plate adapted to engage the rear side of the impaling posts below the (lamping plate.

4. The combination with a binding plate of impaling posts rigidly secured thereon, a clamping plate having slotted apertures therein to receive the impaling posts, leal springs projecting into the apertures to engage the impaling posts when in binding relation and )ermitting release of the clamping plate only y sliding the same to bring said posts into the slots and a brace on the rear edge of said clamping plate adapted to engage the rear side of the impaling posts below the clamping plate to tip said plate forwardly.

5. In a device of the class described a binding plate, impaling posts rigidly engaged thereon, a clamping plate comprising a clamping member parallel to the binding plate, a flange extending downwardly along the impaling posts, apertures in said clamping plate to receive the impaling posts therethrough and resilient members adapted to grip the protruding ends of the impaling posts.

6. In a device of the class described abind ing plate, impaling posts rigidly engaged thereon, a clamping plate comprising a metallic strip formed longitudinally to afford an apertured clamping member parallel to the binding plate, a flange extending downwardly along the impaling posts and leaf springs adapted to grip the protruding end of the impaling posts when in binding relation, said clamping plate adjacent the apertures therein being slotted to receive the impaling posts when in release position.

7. In a device of the class described impaling posts, a clamping plate adapted to receive the same therethrough and a flange on the clamping plate adapted to bear on the impaling posts.

8. In a device of the class described a binding plate, impaling osts rigidly engaged thereon, a clamping p ate adapted to engage thereon and comprising a clamping member parallel to the binding plate, a flange integral therewith and extending downwardly along the impaling posts and acting to incline the edge of the clamping member into binding engagement with the leaves to be bound thereby.

9. In a device of the class described a binding plate, integral impaling posts thereon, a clamping plate com rising a metallic strip formed longitudinal y to afford a clamping member parallel to the binding plate, a flange extending downwardly along and bearing on the impaling posts, said clamping plate hav ing slotted apertures to receive the impaling posts therethrough and resilient members adapted to grip the protruding end of the impaling posts when pressed thereon and to release the impaling posts when the clamping plate is moved longitudinally.

10. In a device of the class described a binding plate, impaling posts secured thereto, a clamping plate adapted to receive and engage said impaling posts having its front edge inclined to exert binding pressure on sheets engaged between the plates and means for tilting the clamping plate forwardly.

11. In a device of the class described a binding plate, a clamping plate having its forward edge angularly directed to exert pressure on sheets engaged between the plates, means for connecting the plates and means integral with the clamping plate adapted to engage part of the connecting means for tilting the clamping plate adapting the front edge to exert pressure on the sheets.

12. In a device of the class described 00- acting binding and clamping plates, one of said plates provided with an edge adapted to cornqress sheets and coacting means, part rigid y secured to one plate and part integral with the other plate for connecting the plates.

13. In a device of the class described a binding plate, a clamping plate, impaling posts secured to one of "the plates provided with downwardly directed ratchet teeth, means on the other late adapted to auto-- matically lock in said teeth as the plates are compressed and one of said plates movable longitudinally of the other to release the looking mechanism from the teeth. of the )osts.

14. In a binder a binding plate, a ciamping plate having its front edge formed to firmly compress the sheets between the same and binding plate, means for inclining the clamping plate adapting its front edge to exert great pressure to compress said sheets and means for locking said binding and clamping plates in rigid relation for any adjustment thereof.

15. In a binder a binding plate, a clamping plate having its front edge formed to firmly compress the sheets between the same and binding plate, posts secured to the binding plate, a downwardly directed flange integral with the clamping plate adapted to limit the rearward movement of the sheets and gripping means secured to the flange adapted to engage the posts.

16. In a device of the class described a clamping plate provided with a Jertures and having the metal on one side of t 1e apertures struck up, a binding plate, toothed impaling posts secured thereto adapted to engage in the a ertures and bear against the struck up metai and springs adapted to engage the teeth of the impaling posts.

17. In a device of the class described a binding plate, impaling posts secured thereto, a clamping plate adapted to receive the impaling posts, means integral .with the clamping lates adapted to engage the posts on one si e and spring pawls adaptedto engage the posts oppositely therefrom to secure the clamping plate in any position.

18. In a device of the class described a binding plate, posts rigidly secured thereto provided with teeth, a clamping )late, a downwardly directed flange integra therewith, a leaf spring rigidly secured to the flange adapted to engage the teeth and means bearing against the post op osite from the spring whereby the edge of the clam ing plate exerts the greatest pressure on t 1e leaves.

19. Ina device of the class described a binding plate, impaling posts secured thereto, a clamping plate provided with apertures to receive the iinpeling posts when the binder is locked, said clamping elete provided with slots to receive the iinpa ing posts when unlocking the binder, a downwardly directed flange integral With the rear of the clamping plate and means rigidly secured to the flange extending partly over the apertures in the clamping plate for engaging the inipaling posts,

20. In a device of theclass described a binding plate, iinpeling posts secured thereto each having teeth, a clamping plate provided with a binding edge and elongated slots to receive the inipeling posts and means secured to the clznnping plates of less width than the slot and extending over corresponding ends of the slots for engaging the hnpzrling posts.

In testimony whereof I have hereunto subscribed lny nzune in the presence 01. two subscribing witnesses.

J OHN \V. MEAKER, JR.

W'itnesses J. W. ANGELL, LAwnnNon RUBs'rnxX. 

